The settlement of the purchase process was perfect. The brush heads meet their appearance after in a perfect way the original brush from Philips but the durability corresponds in any way. The brushes have at least 4 days lost their shape in a 2-times daily use by an average of 2 minutes after about 3 and meet in no more the proportion to the purpose of Zahnpfleg. The original brushes Philips hold at about the same stress for a period of up to 3 months !!! Sorry, the quality is not in accordance even if the price for it initially seemed tempting.